Amplifier



FIG. 1 is a front perspective view of an amplifier showing my new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a right side elevational view thereof.

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a top plan view thereof. The bottom plan view is a mirror image of the top plan view. 

CLAIM The ornamental design for the amplifier, as shown. 